CAJ | 학술논문

沙尘天气过程研究中，起沙过程是沙尘传输和沉降的基础，沙尘模式中的起沙参数化方案决定了能否准确模拟和预报沙尘天气。试验观测和数值模拟是研究起沙过程的重要途径。基于风蚀起沙的物理机制，总结了起沙机制和起沙特征的研究成果，介绍了风蚀起沙的主要影响因子，回顾了起沙关键参数（临界起沙摩擦速度（u*t ）或临界起沙风速（Ut ）、水平跃移沙尘通量（Q）和起沙通量（F））的试验观测及其沙尘模式应用中的参数化方案，并讨论了不同起沙参数化方案的应用与校验。同时，针对目前研究中存在的问题和今后可能的研究方向提出建议。
사진천기과정연구중，기사과정시사진전수화침강적기출，사진모식중적기사삼수화방안결정료능부준학모의화예보사진천기。시험관측화수치모의시연구기사과정적중요도경。기우풍식기사적물리궤제，총결료기사궤제화기사특정적연구성과，개소료풍식기사적주요영향인자，회고료기사관건삼수（림계기사마찰속도（u*t ）혹림계기사풍속（Ut ）、수평약이사진통량（Q）화기사통량（F））적시험관측급기사진모식응용중적삼수화방안，병토론료불동기사삼수화방안적응용여교험。동시，침대목전연구중존재적문제화금후가능적연구방향제출건의。
Dust emission generated by wind erosion is a basic process before the transport and deposition of dust particles.Pa-rameterization of dust emission flux is important for accurate simulation and prediction of dust events.Field observation and nu-merical simulation are two approaches to understand the complex process of dust emission.Great progress has been made on the characteristics and mechanism of dust emission during dust storm events.This review introduces the major factors influen-cing dust emission,and summarizes the calculation methods of several key parameters of dust emission,including the threshold friction velocity u*t ,threshold wind speedUt ,streamwise saltation flux Q,and (vertical)dust emission flux F,from perspec-tives of both observation and parameterization.The paper also discusses the improvement,application,and validation of differ-ent dust emission schemes in dust models.Existing problems and future research directions are elaborated as well.